Hello, I'm looking for some better conductor for my air-blast gap than what I'm currently using. I have 1/4" steel bolts for electrodes right now, and I realize that steel is not good, but I can't find any copper or brass or aluminum bolts. (Isn't brass just copper with a sodium hydroxide shell?) Also, does anyone have any info on the conductivity/heat dissipation of zinc? Thanks, Ryan Ries http://spud.pureinsanity-dot-net